Both the Forte Koup and the Civic Si have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and available rearview cameras.
The Forte Koup comes with a full 5 year/60,000 mile basic warranty, which covers the entire car and includes 24 hour roadside assistance. The Civic Si’s 3 year/36,000 mile basic warranty expires 2 years and 24,000 miles sooner.
Kia’s powertrain warranty covers the Forte Koup 5 years and 40,000 miles longer than Honda covers the Civic Si. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the Civic Si ends after only 5 years or 60,000 miles.
J.D. Power and Associates’ 2015 Initial Quality Study of new car owners surveyed provide the statistics that show that Kia vehicles are better in initial quality than Honda vehicles. J.D. Power ranks Kia second in initial quality, above the industry average. With 25 more problems per 100 vehicles, Honda is ranked 14th.
The Forte Koup SX’s standard 1.6 turbo 4 cyl. produces 21 lbs.-ft. more torque (195 vs. 174) than the Civic Si’s 2.4 DOHC 4 cyl.
To lower fuel costs and make buying fuel easier, the Kia Forte Koup uses regular unleaded gasoline. The Civic Si requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.
The Forte Koup has standard front and rear gas-charged shocks for better control over choppy roads. The Civic Si’s suspension doesn’t offer gas-charged shocks.
For a smoother ride and more stable handling, the Forte Koup’s wheelbase is 3.1 inches longer than on the Civic Si Coupe (106.3 inches vs. 103.2 inches).
For better handling and stability, the average track (width between the wheels) on the Forte Koup is 1.8 inches wider in the front and 1.6 inches wider in the rear than the track on the Civic Si.
For better maneuverability, the Forte Koup’s turning circle is 2.3 feet tighter than the Civic Si Coupe’s (34.8 feet vs. 37.1 feet).
Because it has more passenger and cargo room, the Forte Koup is rated a Compact car by the EPA, while the Civic Si Coupe is rated a Subcompact.
The Forte Koup has 9.7 cubic feet more passenger volume than the Civic Si Coupe (92.3 vs. 82.6).
The Forte Koup has .5 inches more front headroom, .6 inches more front hip room, .8 inches more front shoulder room, 2.1 inches more rear headroom, 5.1 inches more rear legroom, 4.5 inches more rear hip room and .8 inches more rear shoulder room than the Civic Si Coupe.
The Forte Koup has a much larger trunk than the Civic Si Coupe (13.3 vs. 11.7 cubic feet).
The Forte Koup’s front power windows open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Civic Si’s passenger windows don’t open or close automatically.
The Smart Key optional on the Forte Koup allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Honda Civic Si’s Smart Entry Keyless Remote doesn’t unlock the trunk.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Forte Koup has standard extendable sun visors. The Civic Si doesn’t offer extendable visors.
The Forte Koup’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. The Civic Si doesn’t offer heated side mirrors.
The Forte Koup’s optional rear view mirror has an automatic dimming feature. This mirror can be set to automatically darken quickly when headlights shine on it, keeping following vehicles from blinding or distracting the driver. The Civic Si doesn’t offer the luxury of an automatic dimming rear view mirror.
The Forte Koup offers optional heated front seats, which keep the driver and front passenger extremely comfortable in the winter. Heated seats aren’t available in the Civic Si.
Optional air conditioned seats in the Forte Koup keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Civic Si doesn’t offer an air conditioned driver’s seat.
On extremely cold Winter days, the Forte Koup’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The Civic Si doesn’t offer a heated steering wheel.
The Forte Koup’s optional dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Civic Si doesn’t offer dual zone air conditioning.
The Forte Koup’s optional automatic temperature control maintains the temperature you set, automatically controlling fan speed, vents and temperature to maintain a consistent, comfortable environment. The Civic Si doesn’t offer automatic air conditioning.
Insurance will cost less for the Forte Koup owner. The Complete Car Cost Guide estimates that insurance for the Forte Koup will cost $245 less than the Civic Si over a five-year period.
Intellichoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Kia Forte Koup will be $2439 to $2834 less than for the Honda Civic Si.
Consumer Reports® recommends both the Kia Forte Koup and the Honda Civic Si, based on reliability, safety and performance.